Cosuno connects builders and general contractors

Receive requests within your areas of activity, find new jobs in your area, and collaborate with your customers in one place.

With Cosuno you can easily...

...increase your visibility

Show tendering companies what you can do, receive
qualified inquiries and create online quotations according to
GAEB (including import of local files).

...find your next project

Every week, tendering companies publish hundreds of
new construction
tenders on our marketplace - also in your trade and region.

Find tenders now
Find tenders now

...manage all requests in one place

Improved communication with tendering companies during the awarding process. Conveniently submit tenders online and export everything you need for your own documentation.

Fill in bid now
Fill in bid now

Receive relevant bid requests and seek out new projects proactively

Customise your profile and receive relevant bid requests

To increase your chances of being hired as a subcontractor, include details about your work categories, travel radius, and other relevant company information in your profile. This will help clients to find you and ensure that you only receive requests for proposals that align with your areas of expertise. Your profile will be listed on the Cosuno platform and in the online Construction Directory. You can update your profile information anytime.

View profiles and sign up

Find your next project on the Cosuno marketplace

Use the Cosuno marketplace to find bid packages that are relevant to you. Access all the necessary project information and submit your bid through Cosuno. This allows you to secure new clients and projects on your terms.

Search the Cosuno marketplace now

Manage all bids in one place

Add external bid requests

On the Cosuno platform, you can see all bid requests and the appropriate message histories with construction partners and stakeholders. A transparent overview of all messages will help you to manage all bid requests in more efficient ways.

Share bid requests

With just one click, you can share bid requests with your construction partners. Monitor and keep a clear overview of all incoming and outgoing responses for a faster collaboration between all parties.

Simple communication during the awarding process

Message function

With the Cosuno platform, you can efficiently manage all communication relating to the tender process in one place. The integrated message function enables you to monitor messages, which makes it easier for all parties involved to collaborate effectively and efficiently.

More bid requests for your company

Overview of our packages


free of charge

Respond to received bid requests and submit bids directly.


  • Submission of bids for invited tenders
  • Simple and fast bid submission according to GAEB (including import of local files)
  • Listed in the Cosuno network
  • Simple certificate management
  • Messaging with tendering companies
Start with Basic





Searching for contracts made easy: unlimited bid submissions via the Cosuno Marketplace


  • Everything in Basic, and additionally:
  • Access to the Cosuno Marketplace
  • Unlimited amount of bid submissions via the Cosuno Marketplace
  • Increased visibility among potential tendering companies
  • Extended subcontractor profile
Start with Premium

* per month, monthly cancellation

Certified software


"Once we booked a demo with Cosuno, we immediately realised that the software was what we needed. Within three days, we were able to manage the entire manual tendering and awarding process online with the Cosuno software."

Dennis Beckmann

Purchasing manager


J. Lindemann GmbH & Co. KG

"With Cosuno, we have professionalised our projects in individual bids and bid packages: Thanks to the number of qualified bids, we can minimise price risks and form new, long-term partnerships."

Alexander Knoop



SIB Capital

"It is a big relief not having to keep composing a new email, but being able to contact subcontractors easily."

Kim Brandes



Kondor Wessels

"More automation, more transparency, fewer manual processes and thus more time for essential tasks: efficient communication on a familiar basis with subcontractors."

Andreas Paul

Purchasing manager


Gebr. Neumann

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Create an account and benefit from receiving the best bid requests and suitable projects within your work radius!

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